Frequently Asked Questions

MPC-Buoy


Is research about the MPC-Buoy technology available?

Prior to bringing the MPC-Buoy on the market, research was conducted. This research was conducted by a European consortium in which two buoys were installed in Jezioro Skrzyneckie Małe Lake, 10.7 ha in Poland. The MPC-Buoys provided a complete overview of the water quality by collecting the following parameters every 10 minutes: chlorophyll (green algae), phycocyanin (blue-green algae), pH, TSS, dissolved oxygen, and temperature. The project showed that the ultrasound treatment needs to be adjusted according to the type of algae and other parameters in the water in order to perform at its highest efficiency. More information about this research can be found at http://clearwater-pmpc.com.

What is the size of the MPC-Buoy?

The MPC-Buoy has the following dimensions 2540mm x 2188mm x 860mm and weights 160kg. One MPC-Buoy system can treat areas up to 500 meter in diameter.

How does the MPC-Buoy communicate?

The MPC-Buoy is linked with the MPC-View software. This provides the opportunity to visually gain real-time data about the water quality and the status of the LG Sonic® transmitters.  The software will provide the monitored and collected information via charts, tables, and sheets on a personal web page. In this way, a complete and clear overview is given. The MPC-Buoy communicates through a GSM/GPRS telemetry quad band in which 850/900/1800 or 1900 MHz is possible. Through the GSM control, monitoring and changing the ultrasound program remotely is possible. Furthermore, status updates and alerts when power outages occur can be received. The communication between the several MPC-Buoys is conducted through a radio (UHF/VHF0).

What is the range of the MPC-Buoy?

The range of a MPC-Buoy is 500 m in diameters. However, if the lake is bigger than this, it is possible to use a combination of several buoys.

What is included with the MPC-Buoy?

All the parts are included in the buoy, including the solar panels and batteries. Because the mooring depends on the type of lake, water depth, and climate, the only thing the customer needs to arrange is the mooring of the buoys.

Can the MPC-Buoy provide power all year round in any country?

Yes, the buoy is equipped with 3 solar panels of 195 Wp, and the batteries provide 3 to 5 days’ autonomy. This makes MPC-Buoy perfectly capable of providing power all year long anywhere around the world.

Do you also provide water quality monitoring without the ultrasonic devices?

Yes, if this is required, we can help you with any water quality sensors for your application.

Can I also use the MPC technology for smaller ponds?

Yes, the MPC technology is available in two versions:

  1. The MPC-Buoy: This version has 3 solar panels, a range of 500 meters, and a buoy to install it in the middle of the lake.
  2. The MPC-Grid: This is a smaller version of the buoy because it does not include the solar panels and batteries. The power is supplied via a cable to the float. This unit can have a variable amount of transmitters and strengths to fit any type of pond. Ask LG Sonic to prepare you a customized quote for your pond.

I have a lake that is larger than 500 meters. Can I still use the MPC-Buoy?

Yes, each MPC-Buoy has a range of 500 meters. When the lake is bigger than this, a combination of buoys can be used. Because water quality monitoring is not necessary at every 500 meters, in these situations, we can use a master and lite combination, in which the master determines the ultrasonic program and sends this to the MPC-Buoy lite. This way, the MPC-Buoy provides a cost-effective solution for algae control, even for larger lakes.

Once installed in the water, will the MPC-Buoy move in the water?

When the MPC-Buoy is implemented in the water, it can move slightly. However, the buoy will stay at a certain point. In order to strengthen the balance and prevent drifting, mooring is implemented. Depending on the water surface level and flow, it is possible to choose between 1-point mooring, 2-point mooring, or 3-point mooring.

LG Sonic e-line


Are the LG Sonic products harmful to fish, plants, zooplankton, or insects?

No, the effects of  LG Sonic products have been tested by various universities and are proven to be safe for fish, plants, zooplakton, and insects. There have been no cases in which the LG Sonic products seem to negatively influence the behavior of fish or growth of plants and fish. In addition, the LG Sonic devices even seem to benefit the fish because the water quality is being improved by the LG Sonic device, and the competition for nutrients, sunlight, and space between plants and algae is being diminished.

I have blue-green algae in my lake. Won’t the installation of an LG Sonic device release the toxins from the cells and create a problem?

Whenever blue-green algae are blooming, toxins can always be present in the lake, even when the water is not treated. Thus, the lake water should be treated with precaution. However, the LG Sonic device itself does not rupture the cells. Instead, the concentration of algae in the water will slowly lower along with the concentration of toxins in your water and the bad smell. Thus, no drastic increase in toxin concentrations should be expected when installing a LG Sonic device.

What kind of algae do you control?

The LG Sonic devices do not only treat the filamentous algae, but also the planktonic algae, in which a further distinction can be made in green and blue-green algae.  Ultrasound technology can influence these types of algae and eventually combat them.  One of the algae which we do not treat is the macrophytic algae, as they do not respond to ultrasound technology. Feel free to send us pictures or a water sample of the algae in your water surface so we can provide you with assistance.

How long does it take before the algae die?

There are different types of algae in existence which react in various ways to the ultrasonic treatment. On average, it takes 2-3 weeks for the treatment to take effect.

Do I need to send a water sample or determine the algae in the laboratory before we can program the LG Sonic e-line?

No, this is not necessary. The LG Sonic e-line products work with 11 different preset ultrasonic programs that vary in specificity. LG Sonic will set your LG Sonic e-line to the most optimal program based on the information that is provided.

What is the lifetime of the devices? When do I have to change the devices?

The lifetime of our devices is between 5 and 10 years.

What is the function of the integrated Aquawiper?

By the integration of an automatic wiper into the LG Sonic device, an optimal performance with minimal maintenance is ensured. The wiper sweeps the head of the transmitter every three hours, therefore a more effective ultrasound is provided with optimal algae control 24/7.

Should the device be in operation continuously?

This is recommended. Since the power consumption of the devices is very low, high costs of continuous operation are diminished. The continuous operation of the LG Sonic products prevents new algae from blooming. In winter, when the temperature of the water drops below 2 degrees Celsius, we recommend taking the unit out of the water to prevent damage to the float and transducer due to frost.

Which voltage is required for the LG Sonic devices?

The voltage which is used for the LG Sonic devices are low DC voltage and alternating current (AC) of 110 or 240 VAC.

Installation and support

MPC-Buoy

I want to install an MPC-Buoy, but I do not have access to a crane or boat at my lake. Can I still install the buoy?

Yes, the MPC-Buoy is a modular unit that is easy to assemble and install. The buoy can be assembled at the shore of the lake and easily pushed into the water. Because it is light, just a small boat will be enough to drag it to the center of the lake.

What sort of maintenance is involved with the MPC-Buoy?

The sensors and ultrasonic transmitters on the MPC-Buoy are all equipped with wipers to keep them clean. This keeps the efficiency and specificity of the MPC-Buoy optimal and makes frequent maintenance to the system redundant. Besides that, the technical status of the system can also be monitored through the MPC-View software, minimizing visits to the MPC-Buoy itself. What is left for maintenance is the calibration of the sensors. LG Sonic can do this for you by sending the sensor package to us once a year.

Do I need to install the MPC-View software to the server of LG Sonic?

No, this is not necessary. The MPC-View software can be set to any server you choose. We do advise giving LG Sonic access to the server in order to change the ultrasonic programs regularly based on the water quality.

 

LG Sonic e-line

Can the LG Sonic e-line units work on DC power as well, for example, to run them on solar or battery power?

Yes, this is possible, but please do indicate this before you purchase the unit so the LG Sonic e-line can be wired for easy connection.

Can I buy an control box with 4 transmitter outputs and only install 1, 2, or 3 transmitters to it?

We provide control boxes with 1, 2, or 4 outputs. However, you can always purchase an control box with 4 ultrasonic transmitter outputs and install fewer transmitters to it, for example, when you plan to place more transmitters later. In that case, LG Sonic will provide the unused transmitter outputs with a cap to prevent corrosion and turn it off. When you install the new transmitter, you can connect the new transmitter and set the transmitter output to the correct ultrasonic program.

Do I need to set all the transmitters on one control box to the same ultrasonic program?

No, each ultrasonic transmitter on the control box can be set independently from the other.

Can I install different types of ultrasonic transmitters (L, XL, XXL) to one control box?

Yes, the control box can operate different transmitters with variable strengths.

How can I change the ultrasonic program of the LG Sonic e-line?
  1. You can use the touch buttons and LCD screen on the control box of your product to change the program of one or more of the ultrasonic transmitters.
  2. You can change the program of one or more ultrasonic transmitters by sending a SMS to your LG Sonic e-line.
  3. LG Sonic can change the program of one or more transmitters or even send a customized ultrasonic program to your unit through the GSM network.

My SIM card is not accepted by the LG Sonic e-line. What do I have to do?

New SIM cards often have a PIN on them used to unlock them. Make sure you have disabled this function before you place the SIM card in the LG Sonic e-line (you can do this by placing the SIM card in your mobile phone first and disabling the PIN in the settings menu).

Where should the ultrasonic transmitter be placed for the best results?

With every LG Sonic device purchased, a comprehensive manual is provided which explains the installation completely (you may also find the manual on the website). This can be found in the “Installation” section. Furthermore, LG Sonic gives free installation advice.

Do I need to install a SIM card in the control box?

The LG Sonic® e-line will still work fine without the GSM communication. The SIM card is just for the GSM communication of the LG Sonic® e-line. If you do not want to change the ultrasonic programs or request the status of the device, you do not need to use a SIM card.

Can I use a longer or shorter ultrasonic transmitter cable?

The LG Sonic e-line has a 20-meter cable; however, the cable extension is optional and can be ordered separately.

How do I know if the ultrasonic transmitter is working?
  • Through the LCD screen, the running program number (PO1 until P12 or off) is seen behind the T1/T2/T3/T4 (depending on the quantity of transducers).
  • Through the LG Sonic e-line tester
  • When you connect the ultrasonic transmitter again, the control box will make three beeps.
  • If you listen well, you will be able to hear the ultrasonic transmitter making sounds.

 

Contact information

  • LG Sonic B.V.
  • Radonstraat 10
  • 2718 TA Zoetermeer
  • The Netherlands